CoreOS 的容器引擎 rkt v1.21.0 发布了。此版本包括实验性 CRI 支持的错误修复，更稳定的集成测试和一些其他有趣的更改：
默认受限网络从 172.16.28.0/24 更改为 172.17.0.0/26
OCI 支持的详细路线图已经完成
新特性
Change the subnet for the default-restricted network
Prepare for writable /proc/sys, and /sys
Documentation/proposals: add OCI Image Format roadmap
Bug 修复
stage1: app add, status didn't work with empty vols
stage1: properly run defer'd umounts in app add
cri: correct 'created' timestamp
fly: ensure the target bin directory exists before building
rkt: misc systemd-related fixes
其他变更
pkg/mountinfo: move mountinfo parser to its own package
stage1: persist runtime parameters
stage1: signal supervisor readiness
sandbox: add missing flagDNSDomain and flagHostsEntries parameters
pkg/tar: fix variable name in error
tests: fix TestExport for the KVM+overlay case
tests: fix some potential gexpect hangs
tests: add smoke test for app sandbox
tests: tentative fixes for sporadic host and kvm failures
rkt: remove empty TODO
Documentation updates:
软件详情：https://github.com/coreos/rkt/releases/tag/v1.21.0
来自:开源中国社区
